fileaccessi.java

用java实现的断点续传源代码

  /*   
  **FileAccess.java   
  */   
  package   NetFox;   
  import   java.io.*;   
    
    
  public   class   FileAccessI   implements   Serializable{   
    
    
  RandomAccessFile   oSavedFile;   
  long   nPos;   
    
    
  public   FileAccessI()   throws   IOException   
  {   
  this("",0);   
  }   
    
    
  public   FileAccessI(String   sName,long   nPos)   throws   IOException   
  {   
  oSavedFile   =   new   RandomAccessFile(sName,"rw");   
  this.nPos   =   nPos;   
  oSavedFile.seek(nPos);   
  }   
    
    
  public   synchronized   int   write(byte[]   b,int   nStart,int   nLen)   
  {   
  int   n   =   -1;   
  try{   
  oSavedFile.write(b,nStart,nLen);   
  n   =   nLen;   
  }   
  catch(IOException   e)   
  {   
  e.printStackTrace   ();   
  }   
    
    
  return   n;   
  }   
    
    
  }   
    
    
 
  public   String   getSFilePath()   
  {   
  return   sFilePath;   
  }   
    
    
  public   void   setSFilePath(String   value)   
  {   
  sFilePath   =   value;   
  }   
    
    
  public   String   getSFileName()   
  {   
  return   sFileName;   
  }   
    
    
  public   void   setSFileName(String   value)   
  {   
  sFileName   =   value;   
  }   
    
    
  public   int   getNSplitter()   
  {   
  return   nSplitter;   
  }   
    
    
  public   void   setNSplitter(int   nCount)   
  {   
  nSplitter   =   nCount;   
  }   
  }   
    
  
  System.err.println(sMsg);   
  }   
  }